Shadow Systems Frame Completion Kit W/ Elite Trigger Glock 1
$175.82
The Shadow Systems Frame Completion Kit with Elite Trigger gives you everything you need to finish a Glock 19 build—minus the frame itself. If you're assembling a compact pistol from the ground up or upgrading an existing platform, this kit consolidates all the internal components into one package, so you're not hunting down parts from five different sources. Shadow Systems manufactures these components domestically, and they're designed to work seamlessly with Gen 3 or Gen 4 Glock 19 frames.
The real star here is the Elite Trigger: a flat-faced, machined aluminum unit that replaces the factory spongy stock trigger. It's a noticeable upgrade that improves control and feel at the range or in the field. Beyond the trigger, you get the full guts—magazine catch and spring, 3.5 lb connector, locking block, slide stop lever, slide lock and spring, trigger housing with integrated ejector, pins, and a standard-weight trigger spring. This is the kind of kit that saves time and ensures compatibility; every piece is engineered to work together without the guesswork.
Whether you're a tinkerer who enjoys building your own or a shooter who wants better ergonomics and performance than stock Glock internals, this completion kit bridges the gap. It's Made in the USA and backed by Shadow Systems' reputation for quality. Just pair it with your choice of frame, and you're ready to assemble.
Key Features
- Elite flat-faced machined aluminum trigger for improved control and feedback
- Complete internal parts set—no need to source components individually
- Includes 3.5 lb connector for a refined trigger break
- Domestic manufacture with quality-focused design
- Compatible with Gen 3 and Gen 4 Glock 19 frames
Specifications
| Brand | Shadow Systems |
| Product Type | Frame Completion Kit |
| Trigger Style | Flat-faced machined aluminum (Elite Trigger) |
| Connector Weight | 3.5 lb |
| Trigger Spring | Standard weight |
| Compatibility | Glock Gen 3 G19, Glock Gen 4 G19 |
| Manufacturing | USA |
Frequently Asked Questions
What Glock models does this kit fit?
This Shadow Systems Frame Completion Kit is compatible with Glock Gen 3 and Gen 4 Glock 19 frames only. If you're working with a different Glock model or generation, verify compatibility before ordering.
What's included in the kit, and what do I still need?
The kit includes the Elite Trigger, magazine catch and spring, 3.5 lb connector, locking block, slide stop lever, slide lock and spring, trigger housing with ejector, all necessary pins, and a standard-weight trigger spring. You will need to source the frame, slide, barrel, recoil spring assembly, and firing pin separately to complete your build.
Can I use this kit to upgrade an existing Glock 19?
Yes. If you have a complete Glock 19 and want to swap in upgraded internals, this kit provides everything needed for that upgrade on Gen 3 or Gen 4 platforms.
Is the Elite Trigger really that much better than stock?
The flat-faced, machined aluminum design is a meaningful upgrade in feel and control compared to factory Glock triggers. The 3.5 lb connector included in the kit also contributes to a cleaner break. Actual performance gain depends on your preferences and shooting style, but shooters typically notice improved feedback and reduced pre-travel.
